Craig Mayer, Nick WIlliams, Vojtech Huser
Lister Hill National Center for Biomedical Communications, National Library of Medicine, NIH, Bethesda, MD

See the full regCTG repository at https://github.com/lhncbc/CRI/tree/master/regCTG

To return to the list of conditions and links to their rpeorts go to https://lhncbc.github.io/CRI/regCTG/regCTG-condition_report_links.html

Study Counts

Type	Study_count
Total_Studies	1904
interventional	1537
Observational	349
Registry	18

Studies over Time

```

Interventional Trials

Intervention Type

intervention_type	Study_Count
Drug	460
Device	303
Drug\|placebo	169
Behavioral	147
Other	139
Procedure	37
Biological	36
Device\|Other	36
Device\|Drug	29
Dietary Supplement	28
Drug\|Other	22
Biological\|placebo	17
Behavioral\|Other	11
Drug\|Procedure	11
Biological\|Drug	8
Dietary Supplement\|placebo	8
Combination Product	7
Device\|Drug\|Other	7
Behavioral\|Device	6
Biological\|Procedure	6
Diagnostic Test	6
Device\|placebo	4
Device\|Procedure	3
Dietary Supplement\|Other	3
Other\|placebo	3
Behavioral\|Drug	2
Biological\|Drug\|placebo	2
Biological\|Drug\|Procedure	2
Combination Product\|Device	2
Dietary Supplement\|Drug\|Other	2
Drug\|Other\|placebo	2
Other\|Procedure	2
Radiation	2
Behavioral\|Device\|Drug	1
Behavioral\|Device\|Other	1
Behavioral\|Device\|Procedure	1
Biological\|Device\|Drug\|Radiation	1
Biological\|Dietary Supplement	1
Biological\|Dietary Supplement\|Other	1
Biological\|Dietary Supplement\|placebo	1
Biological\|Drug\|Other\|placebo	1
Biological\|Other	1
Device\|Dietary Supplement	1
Dietary Supplement\|Drug	1
Dietary Supplement\|Drug\|Other\|placebo	1
Dietary Supplement\|Drug\|placebo	1
Drug\|Genetic\|Other	1
Genetic	1

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Weekly studies for each intervention

Studies by Country

Country	Study_Count
United States	587
Germany	116
Canada	84
France	66
United Kingdom	62
NA	59
Denmark	55
Sweden	35
Austria	30
Israel	29
China	25
United States\|Canada	22
Italy	21
Japan	20
Netherlands	18
Spain	16
Switzerland	16
Belgium	11
Brazil	11
Norway	9
Russian Federation	8
Poland	7
Australia	6
Egypt	6
Finland	6
United States\|Israel	6
Slovenia	5
Argentina	3
Austria\|Germany\|United Kingdom	3
France\|Switzerland	3
Greece	3
Israel\|Slovenia	3
Korea, Republic of	3
Luxembourg	3
United States\|United Kingdom	3
Austria\|Czechia\|Germany\|Hungary\|Netherlands\|Poland\|Portugal\|Spain\|United Kingdom	2
Austria\|Germany\|Luxembourg\|United Kingdom	2
Austria\|United Kingdom	2
Bulgaria\|Czech Republic\|Denmark\|Finland\|France\|Hungary\|Macedonia, The Former Yugoslav Republic of\|Poland\|Russian Federation\|Turkey\|United Kingdom	2
Czechia	2
Germany\|Israel\|Slovenia	2
Germany\|United Kingdom	2
Jordan	2
New Zealand	2
Norway\|Sweden	2
Pakistan	2
Saudi Arabia	2
United States\|Australia	2
United States\|Australia\|Canada\|Finland\|Italy\|United Kingdom	2
United States\|Australia\|Canada\|Italy	2
United States\|Austria\|Canada\|Germany	2
United States\|France\|Israel\|Italy	2
United States\|Germany	2
United States\|Germany\|Israel\|Slovenia	2
United States\|Mexico	2
United States\|Puerto Rico	2
Algeria\|Argentina\|Brazil\|Colombia\|Kuwait\|Mexico\|Saudi Arabia\|South Africa\|Tunisia	1
Argentina\|Australia\|Austria\|Brazil\|Canada\|Croatia\|Denmark\|Finland\|France\|Ireland\|Israel\|Norway\|Poland\|Russian Federation\|South Africa\|Spain\|United Kingdom	1
Argentina\|Australia\|Austria\|Brazil\|Canada\|Croatia\|Denmark\|Greece\|Ireland\|Israel\|Italy\|Russian Federation\|Serbia\|Spain\|United Kingdom	1
Argentina\|Australia\|Bulgaria\|Croatia\|India\|Macedonia, The Former Yugoslav Republic of\|Malaysia\|Romania\|South Africa\|Turkey	1
Argentina\|Austria\|Bulgaria\|Canada\|Croatia\|Denmark\|Finland\|France\|Germany\|Greece\|Ireland\|Israel\|Netherlands\|Norway\|Poland\|Russian Federation\|Spain\|United Kingdom	1
Argentina\|Brazil\|Finland\|India\|Italy\|Japan\|Macedonia, The Former Yugoslav Republic of\|United Kingdom	1
Argentina\|China\|Mexico	1
Argentina\|Croatia\|Czech Republic\|Denmark\|Finland\|France\|Greece\|Italy\|Macedonia, The Former Yugoslav Republic of\|Norway\|Poland\|Romania\|Russian Federation\|Slovakia\|Sweden	1
Australia\|Belgium\|Denmark\|Finland\|France\|Ireland\|Netherlands\|Norway\|Sweden\|United Kingdom	1
Australia\|Canada	1
Australia\|Canada\|Denmark\|Netherlands\|United Kingdom	1
Australia\|Croatia\|Denmark\|Italy\|South Africa\|Sweden	1
Australia\|Hong Kong\|Malaysia\|Philippines	1
Australia\|New Zealand	1
Austria\|Belgium\|Bulgaria\|France\|Germany\|Hungary\|Israel\|Italy\|Lithuania\|Netherlands\|Poland\|Romania\|Slovakia\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Austria\|Czech Republic\|Finland\|France\|Germany\|Greece\|Israel\|Italy\|South Africa\|Spain\|United Kingdom	1
Austria\|Denmark\|Finland\|Germany\|Norway\|Sweden\|Switzerland\|United Kingdom	1
Austria\|Denmark\|Italy\|Luxembourg\|Netherlands\|Slovenia\|Spain	1
Austria\|Germany	1
Austria\|Germany\|Ireland\|Switzerland\|United Kingdom	1
Austria\|Germany\|Italy\|Netherlands\|United Kingdom	1
Austria\|Germany\|Poland\|United Kingdom	1
Austria\|Germany\|South Africa	1
Austria\|Israel	1
Austria\|Switzerland\|United Kingdom	1
Bahamas	1
Bahrain\|Kuwait\|Qatar\|United Arab Emirates	1
Belarus	1
Belgium\|Croatia\|Denmark\|Finland\|France\|Germany\|Ireland\|Israel\|Macedonia, The Former Yugoslav Republic of\|Netherlands\|Norway\|Slovenia\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Belgium\|Denmark\|France\|Germany\|Lithuania\|Sweden\|United Kingdom	1
Belgium\|France	1
Belgium\|France\|Germany\|Netherlands\|Sweden\|Switzerland	1
Belgium\|France\|Ireland\|Netherlands\|United Kingdom	1
Belgium\|France\|Luxembourg	1
Belgium\|France\|Netherlands\|Sweden	1
Belgium\|Germany	1
Belgium\|Germany\|Italy	1
Belgium\|Germany\|Poland\|Sweden\|United Kingdom	1
Belgium\|United States\|Austria\|Bulgaria\|Canada\|Denmark\|Finland\|France\|Italy\|Netherlands\|South Africa\|Spain\|Sweden	1
Canada\|Czech Republic\|Finland\|France\|Germany\|South Africa\|Spain\|United Kingdom	1
Canada\|Germany	1
China\|Spain	1
Colombia	1
Croatia\|Czech Republic\|Israel\|Russian Federation\|Slovenia	1
Czech Republic\|France\|Italy	1
Czech Republic\|Germany\|Hungary\|Italy\|Poland	1
Czechia\|Netherlands\|Spain\|Sweden	1
Denmark\|Finland	1
Denmark\|Germany\|Italy\|Netherlands\|Poland\|Spain\|Switzerland	1
Denmark\|Netherlands	1
Former Serbia and Montenegro\|Germany\|Macedonia, The Former Yugoslav Republic of\|Russian Federation\|South Africa	1
France\|Belgium	1
France\|Germany\|Hungary	1
France\|Germany\|Israel\|Italy\|Slovenia\|Sweden\|United Kingdom	1
France\|Germany\|Italy\|Spain\|United Kingdom	1
France\|Germany\|United Kingdom	1
France\|Italy\|Netherlands	1
France\|Italy\|Netherlands\|United Kingdom	1
Germany\|Austria\|Netherlands\|Spain\|Sweden	1
Germany\|Italy	1
India	1
Iran, Islamic Republic of	1
Ireland	1
Israel\|Slovenia\|Sweden	1
Italy\|Switzerland	1
Japan\|Taiwan	1
Kazakhstan	1
Lithuania\|Belgium\|Denmark\|France\|Germany\|Sweden\|United Kingdom	1
Mexico	1
Netherlands\|Spain	1
Poland\|United States\|Argentina\|Australia\|Belgium\|Bulgaria\|Canada\|Colombia\|Czechia\|France\|Germany\|Hungary\|Israel\|Italy\|New Zealand\|Slovakia\|South Africa\|Spain\|United Kingdom	1
Poland\|United States\|Australia\|Denmark\|France\|Israel\|Puerto Rico\|Romania\|Russian Federation\|United Kingdom	1
Poland\|United States\|Belgium\|Denmark\|Finland\|Germany\|Norway\|Sweden	1
Poland\|United States\|Czechia\|Germany\|Hungary\|Spain	1
Portugal	1
Qatar	1
Rwanda	1
South Africa	1
Taiwan	1
Taiwan\|United States\|Austria\|Bulgaria\|Canada\|Germany\|India\|Israel\|Italy\|Japan\|Puerto Rico\|Russian Federation\|Serbia	1
Turkey	1
Ukraine	1
United States\|Argentina\|Australia\|Austria\|Brazil\|Germany\|Greece\|India\|Italy\|Japan\|Mexico\|New Zealand\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|Spain\|Sweden\|Taiwan	1
United States\|Argentina\|Australia\|Belgium\|Canada\|Finland\|France\|Germany\|Ireland\|Israel\|Netherlands\|Norway\|Poland\|Russian Federation\|Sweden\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Brazil\|Greece\|Hungary\|Mexico\|Romania\|Russian Federation	1
United States\|Argentina\|Belgium\|Canada\|Chile\|Germany\|Japan\|Netherlands\|Poland\|Russian Federation\|Sweden\|Switzerland\|United Kingdom	1
United States\|Argentina\|Belgium\|France\|Germany\|India\|Italy\|Mexico\|Puerto Rico	1
United States\|Argentina\|Brazil\|Bulgaria\|Canada\|Chile\|Czechia\|Denmark\|France\|Germany\|Hungary\|Israel\|Italy\|Japan\|Latvia\|Mexico\|North Macedonia\|Poland\|Romania\|Russian Federation\|Serbia\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|Denmark\|Finland\|France\|Germany\|Netherlands\|Norway\|Poland\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Denmark\|Finland\|France\|Germany\|Hungary\|Israel\|Italy\|Mexico\|Romania\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|France\|Germany\|Hungary\|Israel\|Italy\|Puerto Rico\|Spain	1
United States\|Australia\|Austria\|France\|Hungary\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Belgium\|Denmark\|Estonia\|Germany\|Hungary\|Israel\|Spain	1
United States\|Australia\|Canada\|Czechia\|Finland\|France\|Germany\|Greece\|Hungary\|Ireland\|Italy\|Latvia\|Mexico\|Netherlands\|New Zealand\|Norway\|Poland\|Portugal\|Romania\|Russian Federation\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Canada\|Italy\|Sweden\|United Kingdom	1
United States\|Australia\|Germany\|Norway\|Sweden	1
United States\|Austria\|Belarus\|Canada\|Czech Republic\|Finland\|Germany\|Hungary\|Israel\|Italy\|Lithuania\|Poland\|Russian Federation\|Spain	1
United States\|Austria\|Belgium\|Canada\|Denmark\|Finland\|Ireland\|Israel\|Italy\|Norway\|Poland\|Portugal\|Russian Federation\|Serbia\|Spain\|Sweden\|Ukraine\|United Kingdom	1
United States\|Austria\|Brazil\|Chile\|Czech Republic\|Germany\|Hungary\|India\|Mexico\|Peru\|Poland\|Romania\|Russian Federation\|South Africa\|Spain\|Turkey	1
United States\|Austria\|Brazil\|China\|Czechia\|Denmark\|France\|Germany\|Israel\|Italy\|Japan\|Mexico\|Poland\|Puerto Rico\|Russian Federation\|Spain\|Ukraine\|United Kingdom	1
United States\|Austria\|Canada	1
United States\|Austria\|France\|Germany\|Italy\|Japan\|Mexico\|Poland\|Russian Federation	1
United States\|Belgium	1
United States\|Belgium\|Brazil\|Canada\|Croatia\|Czechia\|India\|Israel\|North Macedonia\|Poland\|Russian Federation\|Serbia\|Slovenia\|South Africa\|Spain	1
United States\|Belgium\|Canada\|Croatia\|Hungary\|India	1
United States\|Belgium\|Canada\|Czechia\|Finland\|Germany\|Hungary\|Poland\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Netherlands\|Russian Federation\|Slovenia\|United Kingdom	1
United States\|Belgium\|Czech Republic\|Finland\|France\|Germany\|India\|Israel\|Italy\|Mexico\|Netherlands\|Poland\|Romania\|Spain\|Ukraine\|United Kingdom	1
United States\|Belgium\|Germany\|Greece\|Hungary\|Japan\|Mexico\|Poland\|Romania	1
United States\|Belgium\|Germany\|Greece\|Norway\|Poland\|United Kingdom	1
United States\|Brazil\|Australia\|Belgium\|Canada\|Croatia\|Denmark\|France\|Greece\|Ireland\|Israel\|Lithuania\|Netherlands\|New Zealand\|Poland\|Slovakia\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Brazil\|Russian Federation\|Ukraine	1
United States\|Bulgaria\|Czechia\|Estonia\|Finland\|Germany\|India\|Israel\|Italy\|Japan\|Latvia\|Lithuania\|Poland\|Puerto Rico\|Russian Federation\|Serbia\|Turkey\|Ukraine	1
United States\|Bulgaria\|Finland\|France\|Germany\|Italy\|Japan\|Netherlands\|North Macedonia\|Russian Federation\|South Africa\|United Kingdom	1
United States\|Canada\|Croatia\|Finland\|India\|Lithuania\|Netherlands\|United Kingdom	1
United States\|Canada\|Czech Republic\|Denmark\|Estonia\|Finland\|Hungary\|Japan\|Latvia\|Netherlands\|Puerto Rico\|Romania\|Sweden	1
United States\|Canada\|Czech Republic\|Estonia\|Germany\|India\|Israel\|Latvia\|Mexico\|Netherlands\|Poland\|Romania\|Spain\|Sweden\|Ukraine\|United Kingdom	1
United States\|Canada\|Czech Republic\|Poland\|Russian Federation\|Spain\|Ukraine\|United Kingdom	1
United States\|Canada\|Czechia\|Estonia\|Germany\|Hungary\|Latvia\|Romania\|Slovakia\|South Africa\|United Kingdom	1
United States\|Canada\|Czechia\|Germany\|Hungary\|Poland\|United Kingdom	1
United States\|Canada\|Denmark\|Finland\|Germany\|Italy\|Spain\|Sweden\|United Kingdom	1
United States\|Canada\|France\|Germany\|Italy\|Spain\|Sweden\|United Kingdom	1
United States\|Canada\|Germany	1
United States\|Canada\|Germany\|Italy\|Switzerland	1
United States\|Czechia\|Italy\|Sweden\|United Kingdom	1
United States\|Finland\|France\|Germany\|Netherlands\|Sweden\|United Kingdom	1
United States\|Finland\|Germany\|Hungary\|Japan\|Poland\|Russian Federation	1
United States\|Finland\|Sweden	1
United States\|France\|Germany\|Hungary\|Japan\|Poland\|Russian Federation\|Spain	1
United States\|France\|Germany\|Russian Federation\|South Africa\|United Kingdom	1
United States\|France\|Italy\|Netherlands	1
United States\|Hungary	1
United States\|Poland\|Puerto Rico	1
United States\|Puerto Rico\|Slovakia\|Spain\|United Kingdom	1
United States\|Spain	1

Sites per Study

Site_count	Study_Count
1	1046
2	117
3	58
4	25
5	24
6	20
7	28
8	19
9	9
10	10
11	12
12	4
13	5
14	6
15	13
16	5
17	9
18	9
19	6
20	3
21	3
22	2
23	2
24	3
25	4
28	3
29	3
30	2
31	1
32	2
33	5
34	3
35	2
36	2
37	3
38	1
39	3
40	3
42	1
43	2
45	1
46	1
48	1
51	1
52	3
53	1
61	2
65	1
69	1
70	1
73	1
75	3
76	1
77	1
80	1
81	3
82	2
83	1
85	1
89	1
90	1
91	1
92	1
93	1
95	1
96	1
99	1
100	2
107	1
108	1
109	1
115	1
116	1
118	1
119	1
120	1
131	2
135	1
137	1
147	1
152	1
155	1
158	1
162	1
172	1
176	1
182	1
189	1
191	1

Phase

Phase	Study_Count
N/A	675
Phase 1	215
Phase 2	215
Phase 3	186
Phase 4	119
Phase 1/Phase 2	73
Phase 2/Phase 3	28
Early Phase 1	26

Number of Arms

Number_of_Arms	Count_of_Studies
1	301
2	818
3	172
4	75
5	15
6	21
7	1
8	2
9	2
10	1
11	1
14	1
18	1
NA	126

Number of Updates

Count of Versions	Count of Studies
1	128
2	208
3	216
4	186
5	174
6	137
7	97
8	74
9	55
10	29
11	32
12	21
13	27
14	15
15	16
16	19
17	15
18	8
19	11
20	8
21	2
22	5
23	5
24	3
25	4
26	6
27	1
28	2
29	4
30	1
31	1
35	1
36	2
37	1
40	2
41	4
42	4
49	1
52	1
58	1
62	1
63	1
65	1
67	1
72	1
78	1
79	1
88	1
93	1
120	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	8860	1409	6.288148
Contacts/Locations	4229	1211	3.492155
Recruitment Status	2283	1212	1.883663
Study Design	1582	1080	1.464815
None (earliest Version on record)	1537	1537	1.000000
Outcome Measures	1110	686	1.618076
Arms	906	612	1.480392
Interventions	906	612	1.480392
Sponsor/Collaborators	863	570	1.514035
Study Description	846	523	1.617591
Eligibility	795	526	1.511407
Study Identification	708	475	1.490526
Oversight	571	495	1.153535
References	426	288	1.479167
Conditions	319	237	1.345992
More Information	280	159	1.761006
Results	270	270	1.000000
IPDSharing	171	157	1.089172
Results Submission Events	118	118	1.000000
Baseline Characteristics	95	84	1.130952
Documents	84	82	1.024390
Reported Adverse Events	70	70	1.000000
Participant Flow	68	63	1.079365
2020 Study Status	3	3	1.000000
2020 Outcome Measures	2	2	1.000000
2020 Baseline Characteristics	1	1	1.000000
2020Recruitment Status	1	1	1.000000
Quality Control Review has not concludedReturned: April 15	1	1	1.000000
Quality Control Review has not concludedReturned: April 8	1	1	1.000000
Quality Control Review has not concludedReturned: February 25	1	1	1.000000
Quality Control Review has not concludedReturned: March 13	1	1	1.000000
Quality Control Review has not concludedReturned: May 1	1	1	1.000000
Quality Control Review has not concludedReturned: May 14	1	1	1.000000
Quality Control Review has not concludedReturned: May 6	1	1	1.000000

Enrollment Metrics by Phase

Measure	Early.Phase.1	N.A	Phase.1	Phase.1.Phase.2	Phase.2	Phase.2.Phase.3	Phase.3	Phase.4
Min.	5.00000	2.00000	1.00000	4.00000	2.00000	6.0	2.0000	8.000
1st Qu.	13.00000	20.00000	20.00000	10.00000	16.00000	27.5	60.0000	21.500
Median	22.00000	40.00000	30.00000	24.00000	36.00000	54.0	200.0000	45.000
Mean	33.26923	78.50744	37.85047	29.45205	65.04739	84.0	310.2595	111.563
3rd Qu.	47.00000	90.00000	43.75000	41.00000	77.50000	70.5	462.0000	100.000
Max.	126.00000	1500.00000	315.00000	115.00000	1040.00000	554.0	2287.0000	2346.000

Trial Group Type

group_type	Group_Count
Experimental	1668
Active Comparator	772
Placebo Comparator	265
Other	167
No Intervention	165
NA	126
Sham Comparator	11

Intervention Model

intervention_model	Study_Count
Parallel Assignment	637
Crossover Assignment	496
Single Group Assignment	354
Factorial Assignment	24
Sequential Assignment	17
NA	9

Primary Purpose

primary_purpose	Study_Count
Treatment	1033
Basic Science	103
Supportive Care	90
Other	84
Prevention	81
Diagnostic	47
NA	46
Health Services Research	32
Device Feasibility	16
Screening	4
Educational/Counseling/Training	1

Observational Studies

Studies by Country

Country	Study_Count
United States	117
NA	21
Canada	18
France	17
Denmark	13
Italy	9
Netherlands	8
Germany	7
Korea, Republic of	7
United Kingdom	7
Japan	6
Turkey	6
Austria	5
Belgium	5
India	5
Philippines	5
Sweden	5
China	4
Greece	4
Indonesia	4
Israel	4
Spain	4
Switzerland	4
Brazil	3
Slovakia	3
Slovenia	3
Taiwan	3
United States\|United Kingdom	3
Macedonia, The Former Yugoslav Republic of	2
Poland	2
Romania	2
Russian Federation	2
Saudi Arabia	2
United States\|Canada	2
Algeria	1
Argentina\|Austria\|Bulgaria\|Canada\|Croatia\|Czechia\|Denmark\|Finland\|Germany\|Hungary\|India\|Israel\|Lebanon\|Malaysia\|Mexico\|Netherlands\|Poland\|Romania\|Russian Federation\|Saudi Arabia\|Serbia\|Slovakia\|Slovenia\|Sweden	1
Australia	1
Austria\|Denmark\|Germany\|Greece\|Italy\|Switzerland	1
Bangladesh	1
Bangladesh\|Colombia\|Egypt\|Philippines\|Singapore\|South Africa\|Turkey\|United Arab Emirates	1
Belgium\|Czech Republic\|Denmark\|Finland\|France\|Greece\|Ireland\|Israel\|Italy\|Korea, Republic of\|Sweden\|Turkey\|United Kingdom	1
Bosnia and Herzegovina	1
Canada\|Finland\|Israel\|Sweden	1
China\|India\|Malaysia\|Sri Lanka\|Vietnam	1
Croatia	1
Croatia\|Finland\|France\|Germany\|Greece\|Ireland\|Israel\|Italy\|Malaysia\|Netherlands\|Norway\|Poland\|Portugal\|Romania\|Spain\|United Kingdom	1
Denmark\|Germany	1
Denmark\|Germany\|Italy\|Netherlands\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Egypt	1
Finland	1
Former Serbia and Montenegro	1
France\|Austria\|Belgium\|Denmark\|Hungary\|Israel\|Italy\|Lithuania\|Poland\|Serbia\|Slovakia\|Slovenia\|Spain\|Sweden	1
Ireland\|United Kingdom	1
Malaysia	1
Mexico	1
Morocco	1
Netherlands\|Slovenia	1
Netherlands\|Sweden	1
Netherlands\|United Kingdom	1
Pakistan	1
Portugal\|Saudi Arabia\|United Arab Emirates	1
Qatar	1
Singapore	1
Thailand	1
Tunisia	1
United Arab Emirates	1
United States\|Algeria\|Canada\|China\|Denmark\|France\|Germany\|India\|Italy\|Japan\|Mexico\|Netherlands\|Poland\|Russian Federation\|Spain\|Turkey\|United Kingdom	1
United States\|Australia\|Canada\|Finland\|Italy\|United Kingdom	1
United States\|Australia\|Canada\|United Kingdom	1
United States\|China\|France\|Germany\|India\|Japan\|Russian Federation\|Spain\|Turkey\|United Kingdom	1
United States\|Finland\|Germany\|Sweden	1

Sites per Study

Site_count	Study_Count
1	281
2	20
3	9
4	4
5	6
6	6
7	2
8	3
9	2
10	1
12	1
13	1
14	1
17	1
18	1
19	1
23	1
24	1
26	1
27	1
32	1
35	1
38	1
93	1
107	1

Number of Updates

Count of Versions	Count of Studies
1	49
2	58
3	72
4	35
5	19
6	26
7	23
8	19
9	8
10	7
11	5
12	4
13	9
14	1
16	3
18	1
19	1
20	3
24	1
25	1
34	1
64	1
86	2

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	1571	300	5.236667
Contacts/Locations	571	249	2.293173
Study Design	380	234	1.623932
Recruitment Status	371	229	1.620087
None (earliest Version on record)	349	349	1.000000
Sponsor/Collaborators	182	135	1.348148
Eligibility	141	106	1.330189
Study Description	134	89	1.505618
Study Identification	125	90	1.388889
Outcome Measures	119	93	1.279570
Groups	95	75	1.266667
Interventions	95	75	1.266667
Conditions	91	67	1.358209
References	74	52	1.423077
Oversight	69	64	1.078125
IPDSharing	26	25	1.040000
More Information	12	4	3.000000
Results	11	11	1.000000
Results Submission Events	5	5	1.000000
Baseline Characteristics	4	3	1.333333
Documents	3	3	1.000000
Participant Flow	2	2	1.000000
Reported Adverse Events	2	2	1.000000

Enrollment Metrics

Measure	Observational
Min	4.0
1st Qu	40.0
Median	128.0
Mean	582486.2
3rd Qu	600.0
Max	99999999.0

Observation Model

observational_model	Study_Count
Cohort	170
Case-Only	39
Case-Control	33
Case Control	31
NA	27
Other	23
Ecologic or Community	14
Case-Crossover	7
Family-Based	3
Defined Population	1
Defined Population, Natural History	1

Time Perspective

time_perspective	Study_Count
Prospective	218
Cross-Sectional	88
Retrospective	26
NA	9
Other	6
Cross-Sectional, Prospective	2

Registries

Studies by Country

Country	Study_Count
United Kingdom	3
China	2
Denmark	2
Slovenia	2
Austria\|Belgium\|Denmark\|Finland\|France\|Germany\|Italy\|Luxembourg\|Norway\|Poland\|Slovenia\|United Kingdom	1
Canada	1
Egypt	1
Israel	1
Italy	1
Kuwait	1
NA	1
Poland	1
United States	1

Sites per Study

Site_count	Study_Count
1	13
2	1
3	1
6	1
15	1
24	1

Number of Updates

Count of Versions	Count of Studies
1	5
2	7
3	3
4	1
5	1
14	1

Update History Change Type

Change Type	Count_of_Changes	Count_of_Studies	ratio
Study Status	32	13	2.461539
None (earliest Version on record)	18	18	1.000000
Contacts/Locations	14	6	2.333333
Outcome Measures	10	4	2.500000
Recruitment Status	9	7	1.285714
Study Design	7	5	1.400000
Study Description	4	3	1.333333
Sponsor/Collaborators	3	3	1.000000
Study Identification	3	3	1.000000
Eligibility	2	1	2.000000
Groups	2	1	2.000000
Interventions	2	1	2.000000
Oversight	2	2	1.000000
Conditions	1	1	1.000000
Documents	1	1	1.000000
More Information	1	1	1.000000
Results	1	1	1.000000
Results Submission Events	1	1	1.000000

Enrollment Metrics

Measure	Registries
Min	5.00
1st Qu	79.75
Median	141.00
Mean	29246.44
3rd Qu	2411.75
Max	500000.00

Registry Model

observational_model	Study_Count
Cohort	12
Case-Control	2
Case-Crossover	1
Case-Only	1
Case Control	1
Family-Based	1

Time Perspective

time_perspective	Study_Count
Prospective	14
Cross-Sectional	3
Other	1

Follow-up

target_duration	Study_Count
1 Year	4
2 Years	2
3 Years	2
1 Day	1
10 Years	1
12 Months	1
16 Years	1
18 Months	1
2 Months	1
20 Years	1
22 Months	1
4 Years	1
6 Months	1

intervention_type	Study_Count
Drug	460
Device	303
Drug\|placebo	169
Behavioral	147
Other	139
Procedure	37
Biological	36
Device\|Other	36
Device\|Drug	29
Dietary Supplement	28
Drug\|Other	22
Biological\|placebo	17
Behavioral\|Other	11
Drug\|Procedure	11
Biological\|Drug	8
Dietary Supplement\|placebo	8
Combination Product	7
Device\|Drug\|Other	7
Behavioral\|Device	6
Biological\|Procedure	6
Diagnostic Test	6
Device\|placebo	4
Device\|Procedure	3
Dietary Supplement\|Other	3
Other\|placebo	3
Behavioral\|Drug	2
Biological\|Drug\|placebo	2
Biological\|Drug\|Procedure	2
Combination Product\|Device	2
Dietary Supplement\|Drug\|Other	2
Drug\|Other\|placebo	2
Other\|Procedure	2
Radiation	2
Behavioral\|Device\|Drug	1
Behavioral\|Device\|Other	1
Behavioral\|Device\|Procedure	1
Biological\|Device\|Drug\|Radiation	1
Biological\|Dietary Supplement	1
Biological\|Dietary Supplement\|Other	1
Biological\|Dietary Supplement\|placebo	1
Biological\|Drug\|Other\|placebo	1
Biological\|Other	1
Device\|Dietary Supplement	1
Dietary Supplement\|Drug	1
Dietary Supplement\|Drug\|Other\|placebo	1
Dietary Supplement\|Drug\|placebo	1
Drug\|Genetic\|Other	1
Genetic	1

Country	Study_Count
United States	587
Germany	116
Canada	84
France	66
United Kingdom	62
NA	59
Denmark	55
Sweden	35
Austria	30
Israel	29
China	25
United States\|Canada	22
Italy	21
Japan	20
Netherlands	18
Spain	16
Switzerland	16
Belgium	11
Brazil	11
Norway	9
Russian Federation	8
Poland	7
Australia	6
Egypt	6
Finland	6
United States\|Israel	6
Slovenia	5
Argentina	3
Austria\|Germany\|United Kingdom	3
France\|Switzerland	3
Greece	3
Israel\|Slovenia	3
Korea, Republic of	3
Luxembourg	3
United States\|United Kingdom	3
Austria\|Czechia\|Germany\|Hungary\|Netherlands\|Poland\|Portugal\|Spain\|United Kingdom	2
Austria\|Germany\|Luxembourg\|United Kingdom	2
Austria\|United Kingdom	2
Bulgaria\|Czech Republic\|Denmark\|Finland\|France\|Hungary\|Macedonia, The Former Yugoslav Republic of\|Poland\|Russian Federation\|Turkey\|United Kingdom	2
Czechia	2
Germany\|Israel\|Slovenia	2
Germany\|United Kingdom	2
Jordan	2
New Zealand	2
Norway\|Sweden	2
Pakistan	2
Saudi Arabia	2
United States\|Australia	2
United States\|Australia\|Canada\|Finland\|Italy\|United Kingdom	2
United States\|Australia\|Canada\|Italy	2
United States\|Austria\|Canada\|Germany	2
United States\|France\|Israel\|Italy	2
United States\|Germany	2
United States\|Germany\|Israel\|Slovenia	2
United States\|Mexico	2
United States\|Puerto Rico	2
Algeria\|Argentina\|Brazil\|Colombia\|Kuwait\|Mexico\|Saudi Arabia\|South Africa\|Tunisia	1
Argentina\|Australia\|Austria\|Brazil\|Canada\|Croatia\|Denmark\|Finland\|France\|Ireland\|Israel\|Norway\|Poland\|Russian Federation\|South Africa\|Spain\|United Kingdom	1
Argentina\|Australia\|Austria\|Brazil\|Canada\|Croatia\|Denmark\|Greece\|Ireland\|Israel\|Italy\|Russian Federation\|Serbia\|Spain\|United Kingdom	1
Argentina\|Australia\|Bulgaria\|Croatia\|India\|Macedonia, The Former Yugoslav Republic of\|Malaysia\|Romania\|South Africa\|Turkey	1
Argentina\|Austria\|Bulgaria\|Canada\|Croatia\|Denmark\|Finland\|France\|Germany\|Greece\|Ireland\|Israel\|Netherlands\|Norway\|Poland\|Russian Federation\|Spain\|United Kingdom	1
Argentina\|Brazil\|Finland\|India\|Italy\|Japan\|Macedonia, The Former Yugoslav Republic of\|United Kingdom	1
Argentina\|China\|Mexico	1
Argentina\|Croatia\|Czech Republic\|Denmark\|Finland\|France\|Greece\|Italy\|Macedonia, The Former Yugoslav Republic of\|Norway\|Poland\|Romania\|Russian Federation\|Slovakia\|Sweden	1
Australia\|Belgium\|Denmark\|Finland\|France\|Ireland\|Netherlands\|Norway\|Sweden\|United Kingdom	1
Australia\|Canada	1
Australia\|Canada\|Denmark\|Netherlands\|United Kingdom	1
Australia\|Croatia\|Denmark\|Italy\|South Africa\|Sweden	1
Australia\|Hong Kong\|Malaysia\|Philippines	1
Australia\|New Zealand	1
Austria\|Belgium\|Bulgaria\|France\|Germany\|Hungary\|Israel\|Italy\|Lithuania\|Netherlands\|Poland\|Romania\|Slovakia\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Austria\|Czech Republic\|Finland\|France\|Germany\|Greece\|Israel\|Italy\|South Africa\|Spain\|United Kingdom	1
Austria\|Denmark\|Finland\|Germany\|Norway\|Sweden\|Switzerland\|United Kingdom	1
Austria\|Denmark\|Italy\|Luxembourg\|Netherlands\|Slovenia\|Spain	1
Austria\|Germany	1
Austria\|Germany\|Ireland\|Switzerland\|United Kingdom	1
Austria\|Germany\|Italy\|Netherlands\|United Kingdom	1
Austria\|Germany\|Poland\|United Kingdom	1
Austria\|Germany\|South Africa	1
Austria\|Israel	1
Austria\|Switzerland\|United Kingdom	1
Bahamas	1
Bahrain\|Kuwait\|Qatar\|United Arab Emirates	1
Belarus	1
Belgium\|Croatia\|Denmark\|Finland\|France\|Germany\|Ireland\|Israel\|Macedonia, The Former Yugoslav Republic of\|Netherlands\|Norway\|Slovenia\|Spain\|Sweden\|Switzerland\|United Kingdom	1
Belgium\|Denmark\|France\|Germany\|Lithuania\|Sweden\|United Kingdom	1
Belgium\|France	1
Belgium\|France\|Germany\|Netherlands\|Sweden\|Switzerland	1
Belgium\|France\|Ireland\|Netherlands\|United Kingdom	1
Belgium\|France\|Luxembourg	1
Belgium\|France\|Netherlands\|Sweden	1
Belgium\|Germany	1
Belgium\|Germany\|Italy	1
Belgium\|Germany\|Poland\|Sweden\|United Kingdom	1
Belgium\|United States\|Austria\|Bulgaria\|Canada\|Denmark\|Finland\|France\|Italy\|Netherlands\|South Africa\|Spain\|Sweden	1
Canada\|Czech Republic\|Finland\|France\|Germany\|South Africa\|Spain\|United Kingdom	1
Canada\|Germany	1
China\|Spain	1
Colombia	1
Croatia\|Czech Republic\|Israel\|Russian Federation\|Slovenia	1
Czech Republic\|France\|Italy	1
Czech Republic\|Germany\|Hungary\|Italy\|Poland	1
Czechia\|Netherlands\|Spain\|Sweden	1
Denmark\|Finland	1
Denmark\|Germany\|Italy\|Netherlands\|Poland\|Spain\|Switzerland	1
Denmark\|Netherlands	1
Former Serbia and Montenegro\|Germany\|Macedonia, The Former Yugoslav Republic of\|Russian Federation\|South Africa	1
France\|Belgium	1
France\|Germany\|Hungary	1
France\|Germany\|Israel\|Italy\|Slovenia\|Sweden\|United Kingdom	1
France\|Germany\|Italy\|Spain\|United Kingdom	1
France\|Germany\|United Kingdom	1
France\|Italy\|Netherlands	1
France\|Italy\|Netherlands\|United Kingdom	1
Germany\|Austria\|Netherlands\|Spain\|Sweden	1
Germany\|Italy	1
India	1
Iran, Islamic Republic of	1
Ireland	1
Israel\|Slovenia\|Sweden	1
Italy\|Switzerland	1
Japan\|Taiwan	1
Kazakhstan	1
Lithuania\|Belgium\|Denmark\|France\|Germany\|Sweden\|United Kingdom	1
Mexico	1
Netherlands\|Spain	1
Poland\|United States\|Argentina\|Australia\|Belgium\|Bulgaria\|Canada\|Colombia\|Czechia\|France\|Germany\|Hungary\|Israel\|Italy\|New Zealand\|Slovakia\|South Africa\|Spain\|United Kingdom	1
Poland\|United States\|Australia\|Denmark\|France\|Israel\|Puerto Rico\|Romania\|Russian Federation\|United Kingdom	1
Poland\|United States\|Belgium\|Denmark\|Finland\|Germany\|Norway\|Sweden	1
Poland\|United States\|Czechia\|Germany\|Hungary\|Spain	1
Portugal	1
Qatar	1
Rwanda	1
South Africa	1
Taiwan	1
Taiwan\|United States\|Austria\|Bulgaria\|Canada\|Germany\|India\|Israel\|Italy\|Japan\|Puerto Rico\|Russian Federation\|Serbia	1
Turkey	1
Ukraine	1
United States\|Argentina\|Australia\|Austria\|Brazil\|Germany\|Greece\|India\|Italy\|Japan\|Mexico\|New Zealand\|Poland\|Puerto Rico\|Romania\|Russian Federation\|Slovakia\|Spain\|Sweden\|Taiwan	1
United States\|Argentina\|Australia\|Belgium\|Canada\|Finland\|France\|Germany\|Ireland\|Israel\|Netherlands\|Norway\|Poland\|Russian Federation\|Sweden\|Ukraine\|United Kingdom	1
United States\|Argentina\|Australia\|Brazil\|Greece\|Hungary\|Mexico\|Romania\|Russian Federation	1
United States\|Argentina\|Belgium\|Canada\|Chile\|Germany\|Japan\|Netherlands\|Poland\|Russian Federation\|Sweden\|Switzerland\|United Kingdom	1
United States\|Argentina\|Belgium\|France\|Germany\|India\|Italy\|Mexico\|Puerto Rico	1
United States\|Argentina\|Brazil\|Bulgaria\|Canada\|Chile\|Czechia\|Denmark\|France\|Germany\|Hungary\|Israel\|Italy\|Japan\|Latvia\|Mexico\|North Macedonia\|Poland\|Romania\|Russian Federation\|Serbia\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Czechia\|Denmark\|Finland\|France\|Germany\|Netherlands\|Norway\|Poland\|Spain\|Sweden\|Taiwan\|United Kingdom	1
United States\|Australia\|Austria\|Belgium\|Canada\|Denmark\|Finland\|France\|Germany\|Hungary\|Israel\|Italy\|Mexico\|Romania\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Austria\|Canada\|France\|Germany\|Hungary\|Israel\|Italy\|Puerto Rico\|Spain	1
United States\|Australia\|Austria\|France\|Hungary\|Israel\|Italy\|Korea, Republic of\|Netherlands\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Belgium\|Denmark\|Estonia\|Germany\|Hungary\|Israel\|Spain	1
United States\|Australia\|Canada\|Czechia\|Finland\|France\|Germany\|Greece\|Hungary\|Ireland\|Italy\|Latvia\|Mexico\|Netherlands\|New Zealand\|Norway\|Poland\|Portugal\|Romania\|Russian Federation\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Australia\|Canada\|Italy\|Sweden\|United Kingdom	1
United States\|Australia\|Germany\|Norway\|Sweden	1
United States\|Austria\|Belarus\|Canada\|Czech Republic\|Finland\|Germany\|Hungary\|Israel\|Italy\|Lithuania\|Poland\|Russian Federation\|Spain	1
United States\|Austria\|Belgium\|Canada\|Denmark\|Finland\|Ireland\|Israel\|Italy\|Norway\|Poland\|Portugal\|Russian Federation\|Serbia\|Spain\|Sweden\|Ukraine\|United Kingdom	1
United States\|Austria\|Brazil\|Chile\|Czech Republic\|Germany\|Hungary\|India\|Mexico\|Peru\|Poland\|Romania\|Russian Federation\|South Africa\|Spain\|Turkey	1
United States\|Austria\|Brazil\|China\|Czechia\|Denmark\|France\|Germany\|Israel\|Italy\|Japan\|Mexico\|Poland\|Puerto Rico\|Russian Federation\|Spain\|Ukraine\|United Kingdom	1
United States\|Austria\|Canada	1
United States\|Austria\|France\|Germany\|Italy\|Japan\|Mexico\|Poland\|Russian Federation	1
United States\|Belgium	1
United States\|Belgium\|Brazil\|Canada\|Croatia\|Czechia\|India\|Israel\|North Macedonia\|Poland\|Russian Federation\|Serbia\|Slovenia\|South Africa\|Spain	1
United States\|Belgium\|Canada\|Croatia\|Hungary\|India	1
United States\|Belgium\|Canada\|Czechia\|Finland\|Germany\|Hungary\|Poland\|United Kingdom	1
United States\|Belgium\|Canada\|France\|Germany\|Netherlands\|Russian Federation\|Slovenia\|United Kingdom	1
United States\|Belgium\|Czech Republic\|Finland\|France\|Germany\|India\|Israel\|Italy\|Mexico\|Netherlands\|Poland\|Romania\|Spain\|Ukraine\|United Kingdom	1
United States\|Belgium\|Germany\|Greece\|Hungary\|Japan\|Mexico\|Poland\|Romania	1
United States\|Belgium\|Germany\|Greece\|Norway\|Poland\|United Kingdom	1
United States\|Brazil\|Australia\|Belgium\|Canada\|Croatia\|Denmark\|France\|Greece\|Ireland\|Israel\|Lithuania\|Netherlands\|New Zealand\|Poland\|Slovakia\|South Africa\|Spain\|Sweden\|United Kingdom	1
United States\|Brazil\|Russian Federation\|Ukraine	1
United States\|Bulgaria\|Czechia\|Estonia\|Finland\|Germany\|India\|Israel\|Italy\|Japan\|Latvia\|Lithuania\|Poland\|Puerto Rico\|Russian Federation\|Serbia\|Turkey\|Ukraine	1
United States\|Bulgaria\|Finland\|France\|Germany\|Italy\|Japan\|Netherlands\|North Macedonia\|Russian Federation\|South Africa\|United Kingdom	1
United States\|Canada\|Croatia\|Finland\|India\|Lithuania\|Netherlands\|United Kingdom	1
United States\|Canada\|Czech Republic\|Denmark\|Estonia\|Finland\|Hungary\|Japan\|Latvia\|Netherlands\|Puerto Rico\|Romania\|Sweden	1
United States\|Canada\|Czech Republic\|Estonia\|Germany\|India\|Israel\|Latvia\|Mexico\|Netherlands\|Poland\|Romania\|Spain\|Sweden\|Ukraine\|United Kingdom	1
United States\|Canada\|Czech Republic\|Poland\|Russian Federation\|Spain\|Ukraine\|United Kingdom	1
United States\|Canada\|Czechia\|Estonia\|Germany\|Hungary\|Latvia\|Romania\|Slovakia\|South Africa\|United Kingdom	1
United States\|Canada\|Czechia\|Germany\|Hungary\|Poland\|United Kingdom	1
United States\|Canada\|Denmark\|Finland\|Germany\|Italy\|Spain\|Sweden\|United Kingdom	1
United States\|Canada\|France\|Germany\|Italy\|Spain\|Sweden\|United Kingdom	1
United States\|Canada\|Germany	1
United States\|Canada\|Germany\|Italy\|Switzerland	1
United States\|Czechia\|Italy\|Sweden\|United Kingdom	1
United States\|Finland\|France\|Germany\|Netherlands\|Sweden\|United Kingdom	1
United States\|Finland\|Germany\|Hungary\|Japan\|Poland\|Russian Federation	1
United States\|Finland\|Sweden	1
United States\|France\|Germany\|Hungary\|Japan\|Poland\|Russian Federation\|Spain	1
United States\|France\|Germany\|Russian Federation\|South Africa\|United Kingdom	1
United States\|France\|Italy\|Netherlands	1
United States\|Hungary	1
United States\|Poland\|Puerto Rico	1
United States\|Puerto Rico\|Slovakia\|Spain\|United Kingdom	1
United States\|Spain	1

Count of Versions	Count of Studies
1	128
2	208
3	216
4	186
5	174
6	137
7	97
8	74
9	55
10	29
11	32
12	21
13	27
14	15
15	16
16	19
17	15
18	8
19	11
20	8
21	2
22	5
23	5
24	3
25	4
26	6
27	1
28	2
29	4
30	1
31	1
35	1
36	2
37	1
40	2
41	4
42	4
49	1
52	1
58	1
62	1
63	1
65	1
67	1
72	1
78	1
79	1
88	1
93	1
120	1

Site_count	Study_Count
1	281
2	20
3	9
4	4
5	6
6	6
7	2
8	3
9	2
10	1
12	1
13	1
14	1
17	1
18	1
19	1
23	1
24	1
26	1
27	1
32	1
35	1
38	1
93	1
107	1

Count of Versions	Count of Studies
1	49
2	58
3	72
4	35
5	19
6	26
7	23
8	19
9	8
10	7
11	5
12	4
13	9
14	1
16	3
18	1
19	1
20	3
24	1
25	1
34	1
64	1
86	2

Count of Versions	Count of Studies
1	128
2	208
3	216
4	186
5	174
6	137
7	97
8	74
9	55
10	29
11	32
12	21
13	27
14	15
15	16
16	19
17	15
18	8
19	11
20	8
21	2
22	5
23	5
24	3
25	4
26	6
27	1
28	2
29	4
30	1
31	1
35	1
36	2
37	1
40	2
41	4
42	4
49	1
52	1
58	1
62	1
63	1
65	1
67	1
72	1
78	1
79	1
88	1
93	1
120	1

Site_count	Study_Count
1	281
2	20
3	9
4	4
5	6
6	6
7	2
8	3
9	2
10	1
12	1
13	1
14	1
17	1
18	1
19	1
23	1
24	1
26	1
27	1
32	1
35	1
38	1
93	1
107	1

Count of Versions	Count of Studies
1	49
2	58
3	72
4	35
5	19
6	26
7	23
8	19
9	8
10	7
11	5
12	4
13	9
14	1
16	3
18	1
19	1
20	3
24	1
25	1
34	1
64	1
86	2

diabetes mellitus, type 1

Study Counts

Studies over Time

Interventional Trials

Intervention Type

Count of Studies by Intervention (normalized and mapped)

Interventions over Time

Studies by Country

Sites per Study

Phase

Number of Arms

Number of Updates

Update History Change Type

Enrollment Metrics by Phase

Trial Group Type

Intervention Model

Primary Purpose

Observational Studies

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Observation Model

Time Perspective

Registries

Studies by Country

Sites per Study

Number of Updates

Update History Change Type

Enrollment Metrics

Registry Model

Time Perspective

Follow-up

Count of Versions	Count of Studies
1	128
2	208
3	216
4	186
5	174
6	137
7	97
8	74
9	55
10	29
11	32
12	21
13	27
14	15
15	16
16	19
17	15
18	8
19	11
20	8
21	2
22	5
23	5
24	3
25	4
26	6
27	1
28	2
29	4
30	1
31	1
35	1
36	2
37	1
40	2
41	4
42	4
49	1
52	1
58	1
62	1
63	1
65	1
67	1
72	1
78	1
79	1
88	1
93	1
120	1

Site_count	Study_Count
1	281
2	20
3	9
4	4
5	6
6	6
7	2
8	3
9	2
10	1
12	1
13	1
14	1
17	1
18	1
19	1
23	1
24	1
26	1
27	1
32	1
35	1
38	1
93	1
107	1

Count of Versions	Count of Studies
1	49
2	58
3	72
4	35
5	19
6	26
7	23
8	19
9	8
10	7
11	5
12	4
13	9
14	1
16	3
18	1
19	1
20	3
24	1
25	1
34	1
64	1
86	2